package com.kong.common.valid;

import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;
import java.util.HashSet;
import java.util.Set;

public class ListValueConstraintValidator implements ConstraintValidator<ListValue,Integer> {

    private Set<Integer> set=new HashSet<>();
    // 初始化方法,将能校验成功的数据全部放入一个集合
    @Override
    public void initialize(ListValue constraintAnnotation) {
        int[] vals=constraintAnnotation.vals();
        for (int val : vals) {
            set.add(val);
        }
    }
    // 判断是否校验成功
    @Override
    public boolean isValid(Integer value, ConstraintValidatorContext constraintValidatorContext) {
        // value 为 需要校验的值
        return (set.contains(value));
    }
}
